Actinia-module-plugin

* fix typo 11
* Endpoint grass_modules and modules only lists accessible grass modules 12
* Change to actinia-core version v2 14

Add redis cache for grass modules (9)

* Move actinia_core imports (8) …

Fixed
- adjust to actinia-core updates (7)

* Show full record in list for grass modules 6

* Lint (3)
* Process Chain Template Management CRUD
* Introduce it (4)
* Enhance redis communication for template CRUD (5)

Including API BREAKING CHANGES:
* `/actiniamodules --> /actinia_modules`
* `/grassmodules --> /grass_modules`
* `/gdi_processing_async --> /processing`
* `/gdi_processing_async_export --> /processing_export`